Loom for the manufacture of tufted or pile fabrics.



No. 872,506. PATBNTED 1130.3, 1901' i T. GREENWOOD. LOOM FOR THEMANUFACTURE OBTUFTED 0R PILB FABRICS.

' APPLICATION FILED MAR.20, I907.

I r V 5 lm uenfim v T 66nw0oi y 7 L 31% Mm 'ras NORRIS PETERS cm,WASHINGTON, a. c.

v 11397 of 1894, and 1095 of 1900.

THOMAS GREENWOOD, OF WOLVERLEY, NEAR KIDDERMINSTER, ENGLAND.

LO OM FOR THE MANUFA.CTURE OF TUFTED ORLPIIQE FABRICS,

Specification of Letters Patent.

Patented Dec. 3, 1907.

Application filed March 20. 1907. Serial No. 363339.

To all whom it may concern: a U

Be it known that I, THOMAS GREENWOOD, subject of His Majesty the King ofGreat Britain and Ireland, residing at The Shrubbery, Wolverley, nearKidderminster, in the county of' Worcester, England, mechanic, haveinvented new and useful Improvements in Looms for the Manufacture ofTufted or Pile Fabrics, of which the following is a specification.

This invention has reference to looms for the manufacture of tufted orpile fabrics and more particularly of carpets or fabrics of the kindknown as RoyalAxminster or moquette. A loom of the kind to which thisinvention relates is described in the specification of British LettersPatent N 0. 15680 of 1890 and various improvements in the same loom aredescribed in the subsequent British Specifications Nos. 11268 of 1891,24086 of 1892, In a loom of the kind above referred to the pile of thecarpet or fabric is formed of tufts which are severed from the pileyarns in the yarn carriers and are brought forward .by grippers whichlay the tufts against the fell of the carpet where the tufts are boundinto the carpet by the weft when the latter is beaten up by the slay.l/Vhen a loom of this kind is made extra wide so as to weave much widercarpets and fabrics than is possible with the loom constructed asdescribed in the specifications above referred to, the top beam whichcarries the vertical bars or yarn carriers and knife comb and travelingknives owing to its great width is very heavy, and my present inventionis directed to provide simple and improved means for mounting this topbeam so that it will move backwards and forwards in the operation of theloom, more easily than it would do if mounted in the usual way.

My invention is illustrated by the accom panying drawings on whichFigure 1 is a front elevation of one end of the top beam and my improvedmeans for mounting the same so as to enable the top beam to move easilybackwards and forwards in the operation of the loom; Fig. 2 is a sideelevation of the same and Fig. 3 is a sectional plan of the same.

In carrying out this invention I mount each end of the top beam 1 on twoor more, preferably two, rollers 2, 3, which are arranged underneath theends of the top beam 1 between planed surfaces 4 thereon and planedsurfaces 5 on end brackets or supports 6 fixed to the top part of theloom frame 7 so that the top beam 1 works to and fro on these rollers 2,3, arranged at each end of the same. Side links 8, 9, connect the axlesof the rollers 2, 3, together and keep them at theproper distance apartand parallel with each other.

Bearing against each end 10 of the top beam 1 there is also anadjustable roller 11 carried by a bracket 12 fixed to the face of theupright side frame 7 of the loom and these rollers 11 are adapted tobear against the vertical planed surfaces 10 of the end of the top beam1 so as to prevent the top beam from moving endwise and to permit of itsproper endwise adjustment which is done by set screws 13 passing throughend lugs 14 of the brackets 12. It will be understood that one of theserollers 11 and its accessories is arranged at each end of the top beam 1so that the endwise adjustment of the top beam .1 can readily beobtained by adjusting the set screws 13 and moving the parts 15 of thebrackets which carry the rollers 11 in the one or the other directionand fixing'these adjustable parts .15 of the brackets and the rollers 11by screws 16 which pass through slot ted holes in the part 15 of thebracket and clamp the same to the stationary part 12.

Two adjustable stop pins 17, 18, are provided and carried by brackets19, 20 on the ends of the brackets 6 and these limit the forward andbackward movements of the top beam 1 which it will be understood is operated by the usual rack 21 and pinion mechanism 22, a coiled wire spring23 being employed and connecting the beam to the bracket 19 at 24 totake up the back lash on the rack and pinion gear. The other end of thespring 23 is connected by the long screw 26 to the downwardly projectingbracket 27 fixed to the top beam 1.

What I claim as my invention and desire to secure by Letters Patent isIn a loom of the class described, a frame,

supporting brackets thereon, a top beam In testimony whereof I havesigned my having planed vertical surfaces at the ends 5 name to thisspecification in the presence of thereof, rollers arranged underneaththe ends l two subscribing Witnesses. of the beam and adapted to roll onthe bracki THOMAS GREENWOOD.

5 ets and adjustable end rollers carried by said Witnesses:

frame and adapted to bear against the said JAMES AMPHERT l\/.[ORTON,Vertical surfaces. ELLIS WILLIAM TALBOT.

